docs: def errdp(marker, number):
      """
      Substitute a double precision number for the first occurrence of
      a marker found in the current long error message.
  
      http://naif.jpl.nasa.gov/pub/naif/toolkit_docs/C/cspice/errdp_c.html
  
      :param marker: A substring of the error message to be replaced.
      :type marker: str
      :param number: The d.p. number to substitute for marker.
      :type number: float
      """
      marker = stypes.stringToCharP(marker)
      number = ctypes.c_double(number)
      libspice.errdp_c(marker, number)